Vulnerability Details CVE-2026-35203
ZLMediaKit is a streaming media service framework. the VP9 RTP payload parser in ext-codec/VP9Rtp.cpp reads multiple fields from the RTP payload based on flag bits in the first byte, without verifying that sufficient data exists in the buffer. A crafted VP9 RTP packet with a 1-byte payload (0xFF, all flags set) causes the parser to read past the end of the allocated buffer, resulting in a heap-buffer-overflow. This vulnerability is fixed with commit 435dcbcbbf700fd63b2ca9eac6cef3b5ea75169d.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 16.3%
CVSS Severity
CVSS v3 Score 7.5
References
Products affected by CVE-2026-35203
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cpe:2.3:a:zlmediakit:zlmediakit:-
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cpe:2.3:a:zlmediakit:zlmediakit:2022-07-28
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cpe:2.3:a:zlmediakit:zlmediakit:4.0
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cpe:2.3:a:zlmediakit:zlmediakit:5.0